The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1983
Filed:
Jan. 18, 1982
Applicant:
Inventors:
Haruhiko Miyazaki, Ube, JP;
Yasushi Shiomi, Ube, JP;
Satoru Fujitus, Yamaguchi, JP;
Katsuro Masunaga, Ube, JP;
Hiroshi Yanagisawa, Ube, JP;
Assignee:
UBE Industries, Ltd., Yamaguchi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560204 ; 2524 / ; 2524 / ; 2524 / ; 252450 ; 252458 ; 252459 ; 252470 ;
Abstract
In a process for preparing a diester of oxalic acid by the vapor phase catalytic reaction of carbon monoxide with an ester of nitrous acid in the presence of a catalyst composed of a solid carrier and a catalyst component supported on the carrier, the improvement wherein said catalyst component is composed of